Algebra 1: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281140
ISBN 13: 978-0-13328-114-9

Chapter 4 - An Introduction to Functions - 4-2 Patterns and Linear Functions - Lesson Check: 3

Answer

The independent variable is the number of times you brush your teeth.The dependent variable is the amount of toothpaste in the tube.

Work Step by Step

A dependent variable is a variable whose value depends on the independent variable. The independent variable is a variable that is manipulated to determine the value of the dependent variable. In the problem, the amount of toothpaste depends on the how many times you brush your teeth. If you brush, your teeth many times, the less toothpaste remains in the tube. If you barely brush your teeth, the amount of paste in the tube would barely change.
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